I knew all (most of) the words of "Parlez-vous" at primary school, though I didn't know what most of them meant, but I don't think we ever sang that, or Eskimo Nell who I believe is mentioned elswhere.

"If a man speaks, and there isn't a woman to hear him, is he still wrong?"

The last time I was on a coach outing we were accused of being 'Saga louts'! Prior to that - in my youth when Knightsbridge was the first village west of London - I spent many a weekend trailing around to band competitions with the Sea Cadets (my then boyfriend, now husband, was a drum major) so Eskimo Nell does ring a bell, but thankfully I have forgotten the words - no don't tell me!

I'd forgotten. Going under the arches into Liverpool Street Station we'd sing 'Auld Lang Syne' and then 'Goodbyeee, don't cryeee' (which, yes, we also sang in 2's on the last night of term). The other passengers must have thought we were mad.
Because it was a scheduled train from Hertford East to Liverpool Street, yet filled with children from the outset (did we populate the train by House?) the other poor passengers along the line must have got a raw deal. I remember pacts that someone (or more than one person) would burst out into a coughing fit (sounding very infectious....) at any of the stopping stations when an innocent passenger tried to open the carriage door....
I remember the very curious feeling when I went back to Hertford by train, for my first Old Girls' Day. Lots of familiar faces, yet here we ourselves were the general public!